TY - GEN
T1 - Numerical simulation of fatigue crack growth of a welded structural component under block program fatigue test
AU - Koji, Gotoh
AU - Koichi, Okada
AU - Masao, Takuno
AU - Sadaharu, Kusuba
N1 - Publisher Copyright:
Copyright © 2014 by ASME.
PY - 2014
Y1 - 2014
N2 - Numerical simulations of fatigue crack growth of welded structural component were performed under fatigue testing conditions with block loading and constant stress range and the fatigue crack growth profiles were measured under the same loading conditions. In the experiments, fatigue cracks developed at the boxing fillet welded toe and grew toward the top flange plates of the specimens. An advanced fracture mechanics approach based on the improved effective stress intensity factor range, which is the RPG (Re-tensile Plastic zone Generating) stress criterion, was applied to perform the numerical simulations of fatigue crack growth in the modeled components. A comparison of estimated fatigue crack growth profiles with measured ones verified that a reasonable estimation of fatigue crack growth can be estimated by applying the proposed numerical method.
AB - Numerical simulations of fatigue crack growth of welded structural component were performed under fatigue testing conditions with block loading and constant stress range and the fatigue crack growth profiles were measured under the same loading conditions. In the experiments, fatigue cracks developed at the boxing fillet welded toe and grew toward the top flange plates of the specimens. An advanced fracture mechanics approach based on the improved effective stress intensity factor range, which is the RPG (Re-tensile Plastic zone Generating) stress criterion, was applied to perform the numerical simulations of fatigue crack growth in the modeled components. A comparison of estimated fatigue crack growth profiles with measured ones verified that a reasonable estimation of fatigue crack growth can be estimated by applying the proposed numerical method.
UR - http://www.scopus.com/inward/record.url?scp=84911933178&partnerID=8YFLogxK
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U2 - 10.1115/OMAE2014-23413
DO - 10.1115/OMAE2014-23413
M3 - Conference contribution
AN - SCOPUS:84911933178
T3 - Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
BT - Materials Technology; Petroleum Technology
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2014
Y2 - 8 June 2014 through 13 June 2014
ER -